Mercurial > hg > truffle
annotate src/os_gpu/linux_ptx/vm/gpu_linux.cpp @ 12515:a7d44c139948
Merge.
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 22 Oct 2013 11:54:18 +0200 |
parents | 4f69a5189e77 |
children | f1a55428a8d7 |
rev | line source |
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10879 | 1 /* |
2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #include "runtime/gpu.hpp" | |
26 #include "utilities/ostream.hpp" | |
27 | |
28 void gpu::probe_gpu() { | |
29 set_available(gpu::Linux::probe_gpu()); | |
30 if (TraceGPUInteraction) { | |
31 tty->print_cr("gpu_linux::probe_gpu(): %d", gpu::is_available()); | |
32 } | |
33 } | |
34 | |
35 /* | |
36 * Probe for CUDA device on PCI bus using /proc/bus/pci/devices. Do | |
37 * not rely on CUDA tool kit being installed. We will check if CUDA | |
38 * library is installed later. | |
39 */ | |
40 | |
41 static unsigned int nvidia_vendor_id = 0x10de; | |
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Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
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42 static unsigned int amd_vendor_id = 0x1002; |
10879 | 43 |
44 bool gpu::Linux::probe_gpu() { | |
45 /* | |
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46 * Open /proc/bus/pci/devices to look for the first GPU device. For |
4f69a5189e77
Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
bharadwaj
parents:
11485
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47 * now, we will just find the first GPU device. Will need to revisit |
4f69a5189e77
Create runtime object based on GPUIL type newly added to gpu class; some code refactoring.
bharadwaj
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48 * this to support execution on multiple GPU devices, if they exist. |
11292
5040ec3ff3aa
Defer PTX on Mac probe to the CUDA driver initialization call
Morris Meyer <morris.meyer@oracle.com>
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49 */ |
10879 | 50 FILE *pci_devices = fopen("/proc/bus/pci/devices", "r"); |
51 char contents[4096]; | |
52 unsigned int bus_num_devfn_ign; | |
53 unsigned int vendor; | |
54 unsigned int device; | |
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bharadwaj
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55 bool gpu_device_exists = false; |
10879 | 56 if (pci_devices == NULL) { |
57 tty->print_cr("*** Failed to open /proc/bus/pci/devices"); | |
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58 return gpu_device_exists; |
10879 | 59 } |
60 | |
61 while (fgets(contents, sizeof(contents)-1, pci_devices)) { | |
62 sscanf(contents, "%04x%04x%04x", &bus_num_devfn_ign, &vendor, &device); | |
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63 /* Break after finding the first GPU device. */ |
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49bb1bc983c6
Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
bharadwaj
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64 if (vendor == nvidia_vendor_id) { |
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bharadwaj
parents:
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65 gpu_device_exists = true; |
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bharadwaj
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66 set_target_il_type(gpu::PTX); |
10879 | 67 if (TraceGPUInteraction) { |
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68 tty->print_cr("Found supported nVidia GPU device vendor : 0x%04x device 0x%04x", vendor, device); |
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69 } |
4f69a5189e77
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bharadwaj
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70 break; |
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bharadwaj
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71 } else if (vendor == amd_vendor_id) { |
4f69a5189e77
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bharadwaj
parents:
11485
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72 gpu_device_exists = true; |
4f69a5189e77
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bharadwaj
parents:
11485
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73 set_target_il_type(gpu::HSAIL); |
4f69a5189e77
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bharadwaj
parents:
11485
diff
changeset
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74 if (TraceGPUInteraction) { |
4f69a5189e77
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bharadwaj
parents:
11485
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75 tty->print_cr("Found supported AMD GPU device vendor : 0x%04x device 0x%04x", vendor, device); |
10879 | 76 } |
77 break; | |
78 } | |
79 } | |
80 | |
81 // Close file pointer. | |
82 fclose(pci_devices); | |
83 | |
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84 return gpu_device_exists; |
10879 | 85 } |